Before this cute kiddo — sprawled out on the living room floor — was bustin’ out his dopest moves on the dance floor, he was just dancing at age 7, and growing up in Minnetonka, Minnesota.

He’s definitely known from “Dancing with the Stars” … In 2015, he made his ‘DWTS’ debut as a background dancer, and made his entrance as a pro a couple years later. His celebrity dance partners included Alexis Renn and Jessie James Decker.

Need one more hint? He and his teammate, ‘Bachelorette’ star Hannah Brown were crowned winners!

Floyd Diaz, an undefeated boxer, was arrested in Sin City last week … after Las Vegas Metro cops pulled the pugilist over while driving a stolen vehicle, TMZ Sports has learned.

During the stop, LVMPD also found the 21-year-old boxer was carrying a firearm he was not legally allowed to possess.

Diaz was initially stopped after a patrol unit received a LoJack alert indicating the vehicle was stolen.

The fighter was booked into the Clark County jail on two charges … possession of a stolen vehicle and carrying a concealed weapon without a permit. Bail was set at $10K total.

The charges, both class C felonies, carry up to 5 years in prison, in addition to hefty fines.

Diaz, 13-0 bantamweight, is a young up-and-coming fighter born and raised in Vegas. He last fought in September, beating Mario Hernandez at Madison Square Garden by unanimous decision.

Ryan Reynolds wasn’t just stopping a few pics at the New York City premiere of “Another Simple Favor” … he was even offering his John Hancock — though at least one cameraperson wasn’t loving the bit.

TMZ got video of the actor outside Jazz at Lincoln Center Sunday, on hand to support his wife’s new flick with Anna Kendrick … and, while chatting with some autograph hunters, he pretended to sign some cameras.

Check out the clip for yourself … it’s all in good fun — but, one dude seems to say something to Ryan, causing him to look up, and it sounds like the camera operator really thinks RR signed his name on the lens.

While it’s a nice moment between Ryan and the media … though he’s kept a relatively low-profile amid the legal battle between him & Blake Lively and Justin Baldoni.

There are too many developments to distill here … but, we’ve put together a timeline of the whole feud with all the details you may have missed.

Speaking of his better half … Reynolds posed with Blake — who lit up the red carpet in a beautiful white dress.

Stanley Tucci, Hugh Jackman, and a whole bunch of bold-faced names also showed up to cheer on Blake and Anna’s highly anticipated sequel to the 2018 flick.

It’s been a whirlwind weekend for the pair … who left Wales after watching Reynolds’ soccer team Wrexham AFC achieve promotion for the third straight season, sharing an intimate moment on the pitch before departing.

Lively showed a lot of love for both Ryan and his business partner, actor Rob McElhenney — and, now Ryan’s obviously returning the support in kind.